Re: [PATCH] seq_file: delete small-value optimization

[Alexey Dobriyan]

> Joe Perches wrote:
> 
> On Tue, 2017-05-16 at 23:42 +0300, Alexey Dobriyan wrote:
> > num_to_str() optimizes printing small integers [0..9], so the same
> > check higher in callchain is unnecessary.
> 
> Doesn't the optimization exists for the frequent use of 0
> in seq output?  
> 
> These seq_put_decimal calls are now slightly more expensive.

That additional CALL instruction is hardly measurable so you're adding
branch to skip branch in the next function.